#panel-primary {
    width: 250px;
    height: 130px;
    float: left;
    margin: 50px 50px 50px 50px;
    border: none;
}

#panel-heading {
    background: rgb(240, 244, 247);
    color: black;
    border: none;
}

#panel-title {
    text-align: center;
}

#panel-body {
    text-align: center;
}

#btn-join {
    position: relative;
    left: 205px;
    top: 11px;
    background: rgb(240, 244, 247);
    color: black;
    border: none;
}

#plus {
    outline: none;
    background: none;
    border: none;
    margin: 140px 20px 0px 100px;
    cursor: pointer;
    float: left;
}

#float-activity {
    clear: both;
}
